AISI 4140 Round Bar exporter in Australia
AISI 4140 Round Bar exporter in Australia offers high-quality alloy steel bars known for their excellent strength, toughness, and wear resistance. These round bars are manufactured from chromium-molybdenum steel, making them ideal for applications requiring durability and high fatigue strength. The material undergoes stringent quality control to meet international standards, ensuring reliability for demanding industrial uses.
This grade of round bar is widely utilized in sectors such as automotive, aerospace, construction, and heavy machinery manufacturing. Its versatile mechanical properties make it suitable for shafts, gears, bolts, and other critical components that operate under high stress. The bars typically come in various diameters and lengths, with precise dimensional tolerances to suit custom engineering requirements.
Exporters based in Australia ensure that these alloy steel bars are processed and packaged in compliance with global transportation norms, facilitating seamless delivery to international clients. The bars are often supplied in normalized, quenched, and tempered conditions, enhancing their machinability and performance in end-use applications. Detailed material test certificates accompany each shipment, guaranteeing traceability and quality assurance.
Industrial buyers can benefit from flexible order quantities and prompt dispatch schedules, supported by robust logistics networks across Australia. The exporterβs commitment to customer service includes technical support for selecting the appropriate grade and size, ensuring optimal performance in specific operational environments. This level of expertise helps manufacturers optimize their production workflows and reduce downtime.
Overall, sourcing AISI 4140 round bars from Australian exporters provides access to a reliable supply of alloy steel products engineered to meet rigorous industrial demands. With a focus on stringent standards, export readiness, and application versatility, these steel bars represent a valuable resource for companies aiming to enhance the durability and efficiency of their mechanical assemblies.
Our Approvals | Third Party Inspection
Lead Time
2β7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why AISI 4140 Round Bar exporter in Australia Are Preferred by Global Buyers
- β Factory Pricing: Direct manufacturer rates with bulk stock
- β Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- β Export-Ready: Sea-worthy packaging for on-time delivery
- β Fast RFQs: Quick quotes for custom sizes & quantities
- β Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 50+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is AISI 4140 Round Bar exporter in Australia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of AISI 4140 Round Bar exporter in Australia
- 4. Why Global Buyers Source from Super Metal Manufacturing Co.
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21.Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Super Metal Manufacturing Co.
How to Choose the Right AISI 4140 Round Bar exporter in Australia
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among AISI 4140 Round Bar exporter in Australia
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Super Metal Manufacturing Co.
Super Metal Manufacturing Co. is a trusted ISO 9001:2015 certified manufacturer and global exporter of ferro alloys and metal products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15β20% compared to European suppliers |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of AISI 4140 Round Bar
- β High tensile strength for improved durability
- β Excellent hardenability for various applications
- β Versatile material suitable for machining and welding
- β Good resistance to wear and deformation
- β Available in various sizes and lengths to meet project needs
- β Conforms to international standards for quality assurance
Technical Overview of AISI 4140 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Used in manufacturing gears, shafts, axles, and other high-strength components | ASTM A829, SAE J403 |
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Ideal for applications requiring high tensile strength and toughness | ASTM A29, AMS 6349 |
| AISI 4140 Round Bar | Carbon 0.38-0.43%, Manganese 0.75-1.00%, Chromium 0.80-1.10%, Molybdenum 0.15-0.25% | Commonly used in the oil and gas industry, as well as in automotive applications | API 6A, API 7-1 |
Specifications Table
| Material | AISI 4140 |
|---|---|
| Grades | 4140, 4142 |
| Standard | ASTM A829, AMS 6349 |
| Size Range | 1 inch to 12 inches in diameter |
| Length | Up to 6 meters |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| AISI 4140 Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.08% Mo | Used in structural applications, automotive, and machinery manufacturing. |
| AISI 4140 HT Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.08% Mo | Suitable for high-stress applications, such as gears and shafts. |
| AISI 4140 QT Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.08% Mo | Ideal for parts requiring high tensile strength and toughness. |
| AISI 4140 Pre-Hard Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.08% Mo | Used in applications where immediate machining is required. |
| AISI 4140 Alloy Steel Round Bar | 0.38-0.43% C, 0.75-1.00% Mn, 0.15-0.25% Si, 0.20-0.35% Cr, 0.04-0.08% Mo | Commonly used in tools and dies, and heavy-duty equipment. |
Available Sizes of AISI 4140 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 20 |
| 25 | 30 |
| 35 | 40 |
| 45 | 50 |
| 55 | 60 |
| 70 | 80 |
| 90 | 100 |
| 110 | 120 |
| 130 | 140 |
| 150 | 160 |
Chemical Properties of AISI 4140
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.38 - 0.43 |
| Manganese (Mn) | 0.75 - 1.00 |
| Silicon (Si) | 0.15 - 0.40 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Sulfur (S) | 0.04 max |
| Phosphorus (P) | 0.04 max |
| Iron (Fe) | Balance |
Mechanical Properties of AISI 4140
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 655 - 850 |
| Yield Strength (MPa) | 415 - 620 |
| Elongation (% in 50 mm) | 12 - 18 |
| Hardness (HB) | 207 - 300 |
| Modulus of Elasticity (GPa) | 210 |
AISI 4140 Round Bar β Physical & Thermal Properties
Density of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,850 kg/mΒ³ | 490 lb/ftΒ³ |
Melting Point of AISI 4140 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,540 Β°C | 2,804 Β°F |
Specific Heat of AISI 4140 Round Bar
| Specific Heat of AISI 4140 Round Bar | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 460 | 20 - 100 | Annealed |
| 470 | 100 - 400 | Tempered |
| 500 | 400 - 600 | Normalized |
Electrical Resistivity of AISI 4140 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·m) | Temperature (°C) | Treatment or Condition |
| 70.0 | 20 | Quenched and Tempered |
| 75.0 | 100 | |
| 80.0 | 200 | |
| 85.0 | 300 | |
| 90.0 | 400 | |
Equivalent of AISI 4140 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A29 | 42CrMo4 | G41400 |
| EN 10083-3 | 42CrMo4 | G41400 |
Manufacturing Process & Heat Treatment of AISI 4140
Annealing
The annealing of AISI 4140 round bars is typically performed to relieve internal stresses and improve machinability. The process involves heating the steel to a temperature of about 850Β°C to 900Β°C, followed by slow cooling in a furnace. This treatment enhances the ductility and toughness of the material.
Forging
Forging of AISI 4140 round bars is conducted at elevated temperatures, generally between 1100Β°C and 1250Β°C. This process improves the mechanical properties of the steel, providing a refined grain structure and increased strength. The bars are shaped by applying compressive forces, which align the internal grain structure.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 850 - 880 | Oil | To increase hardness and strength |
| Tempering | 400 - 700 | Air | To reduce brittleness and achieve desired toughness |
| Quenching | 800 - 850 | Water or Oil | To rapidly cool the steel for maximum hardness |
The heat treatment processes of AISI 4140 round bars are crucial in achieving the desired balance of strength, toughness, and ductility, making them suitable for various industrial applications.
Various Types
AISI 4140 Round Bar - Standard
- Diameter: 10mm to 300mm
- Condition: Hot Rolled, Cold Drawn
- Applications: Automotive components, Machinery parts
AISI 4140 Round Bar - High Strength
- Diameter: 20mm to 150mm
- Condition: Quenched and Tempered
- Applications: Oil and gas drilling, Construction equipment
AISI 4140 Round Bar - Tool Steel
- Diameter: 15mm to 200mm
- Condition: Annealed
- Applications: Tool manufacturing, Heavy machinery
AISI 4140 Round Bar - Custom Sizes
- Diameter: Customized as per requirement
- Condition: Various conditions available
- Applications: Specialized applications as per client needs
Applications & Uses
- Oil & Gas Industry
- Petrochemical Plants
- Water Treatment Plants
- Pharmaceutical Industry
- Food & Beverage Industry
- Automobile Industry
Industries We Serve
Our alloys are widely used across:
- Steel Plants
- Foundries & Casting Units
- Automobile Industry
- Shipbuilding & Marine
- Oil & Gas
- Engineering Components
- Heavy Industrial Machinery
latest Price List of AISI 4140 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| AISI 4140 | 3 mm | $2.50 β $3.00 | βΉ207 β βΉ248 |
| AISI 4140 | 6 mm | $2.40 β $2.90 | βΉ199 β βΉ241 |
| AISI 4140 | 10 mm | $2.30 β $2.80 | βΉ190 β βΉ233 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for AISI 4140 Round Bar.
MOQ & Payment Terms
Minimum Order Quantity: 25β100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
Cities We Suppllied In India
| Supply Cities | |||||
|---|---|---|---|---|---|
| Mumbai | Delhi | Pune | Chennai | Hyderabad | Bengaluru |
| Ahmedabad | Rajkot | Coimbatore | Kolkata | Bhopal | Surat |
We exported to 50+ countries worldwide.
| Exported Countries | |||||
|---|---|---|---|---|---|
| USA | UK | UAE | Germany | South Africa | Australia |
| Italy | Canada | Netherlands | Qatar | Saudi Arabia | Malaysia |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards.
Quality Inspection & Testing
At Super Metal Manufacturing Co., all products are checked through strict quality inspection and testing to meet international standards such as ASTM, ASME, EN, and DIN. This ensures consistent quality, accurate dimensions, and full material traceability.
- β Chemical composition testing
- β Mechanical tests such as tensile and hardness
- β Dimensional inspection as per standard tolerances
- β PMI, ultrasonic, and visual inspection (if required)
- β EN 10204 3.1 / 3.2 test certificates
- β Third-party inspection by SGS, TUV, BV, or Lloydβs
Our quality systems support reliable supply for oil & gas, petrochemical, power, marine, and heavy engineering projects.
People Also Search For
- AISI 4140 Steel Suppliers in Australia
- AISI 4140 Round Bar Price in Australia
- AISI 4140 Round Bar Manufacturers
- AISI 4140 Steel Properties
- AISI 4140 Round Bar Applications
Frequently Asked Questions
About Super Metal Manufacturing Co.
Super Metal Manufacturing Co. is a trusted name in the metal industry since 1965, specializing in the manufacturing and export of high-quality 4140, EN19, and 42CrMo4 round bars. With decades of experience, we have built a strong reputation for delivering precision-engineered, durable, and high-performance steel products to industries worldwide.
Our company is committed to excellence through a robust quality management system and strict quality control at every stage of production. From sourcing premium raw materials from reputed suppliers like SAIL and JSW to final delivery, every product undergoes rigorous testing including tensile testing, bend and rebend tests, chemical analysis, and ultrasonic testing to ensure superior performance and reliability.
We are accredited with ISO 9001 certification and are TUV certified, reflecting our commitment to international quality standards. Our state-of-the-art manufacturing facilities, advanced machinery, and skilled workforce enable us to deliver customized solutions tailored to client requirements.
- β 50+ years of industry experience in alloy steel and round bar manufacturing
- β Specialized in 4140, EN19, and 42CrMo4 high-performance round bars
- β ISO certified and TUV approved quality standards
- β Strict quality testing including ultrasonic and chemical analysis
- β Premium raw material sourcing from SAIL and JSW
- β Advanced manufacturing infrastructure with modern machinery
- β Custom-engineered solutions as per drawings and specifications
- β Global export capability with reliable delivery
- β Trusted by industries for critical and high-performance applications
Our Mission
Our mission is to deliver the highest-quality alloy steel round bars while maintaining excellence in precision, innovation, and customer satisfaction. We aim to empower industries worldwide by providing reliable and durable products that meet evolving manufacturing needs.
Our Vision
Our vision is to become a global leader in the manufacturing and export of premium-quality round bars, recognized for our product excellence, innovation, and commitment to exceeding customer expectations.